他这精简的想法最终造就了几个主要特征，包括一个单窗口模式，这东西花了设计小组几个月的时间。

His desire to strip back and simplify put an end to several major features, including a single-window mode that the design team had worked on for many months.

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文章具体解释了房屋为什么需要机械通风，并站在设计和安装的立场上分析了一个理想系统应具备的主要特征。

The article explains why houses need to be mechanically ventilated and examines the main characteristics of an ideal system from the standpoint of design and installation.

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函数式编程模式：一种程序设计模式，主要特征为大多数函数都是纯函数。

A style of program design in which the majority of functions are pure.

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